UNIX Shell
Bibliography
Bibliography
https://www.cyberciti.biz/faq/linux-unix-shell-programming-converting-lowercase-uppercase/https://stackoverflow.com/questions/238073/how-to-add-a-progress-bar-to-a-shell-script https://www.cyberciti.biz/faq/ksh-array-iteration-examples-using-for-loop/ https://stackoverflow.com/questions/7402587/run-command2-only-if-command1-succeeded-in-cmd-windows-shellhttps://www.computerhope.com/unix/bash/read.htmhttps://www.cyberciti.biz/tips/how-do-i-find-out-what-shell-im-using.htmlhttps://linuxhint.com/trim_string_bash/https://unix.stackexchange.com/questions/88106/why-doesnt-my-bash-profile-work
Arrayshttps://opensource.com/article/18/5/you-dont-know-bash-intro-bash-arrayshttps://stackoverflow.com/questions/11393817/read-lines-from-a-file-into-a-bash-array
Shellshock Vulnerbilityhttps://www.zdnet.com/article/shellshock-makes-heartbleed-look-insignificant/https://www.zdnet.com/article/the-shellshock-faq-heres-what-you-need-to-know/https://www.oracle.com/security-alerts/bashcve-2014-7169.html
zshhttp://zsh.sourceforge.net/ https://en.wikipedia.org/wiki/Z_shellhttps://unix.stackexchange.com/questions/983/what-features-are-in-zsh-and-missing-from-bash-or-vice-versa
dashhttps://wiki.ubuntu.com/DashAsBinSh
String Manipulationhttps://linuxhint.com/trim_string_bash/